Two cylindrical vessels have the base radii as 16 cm and 8 cm. If the heights are 8 cm and 16 cm respectively, find the ratio of their volumes.

radius of cylinder 1 = 16cm
height of cylinder 1= 8cm
volume of cylinder 1 = (π×16×16×8)cm^3

radius of cylinder 2 = 8cm
height of cylinder 2= 16cm
volume of cylinder 2 = (π×8×8×16)cm^3

ratio of the volume of cylinder 1 and cylinder 2 ..=
= (π×16×16×8) : (π×8×8×16)
=2:1